Luiz Carlos Pereira Silveira Martins, better known as Cacalo, (Porto Alegre, August 27, 1950), is a lawyer, broadcaster and Brazilian sports director. He was president of the Grêmio Foot-Ball in the 1997-1998 biennium.
Birthday: August 27, 1950
November 23, 2012
September 18, 2006
October 29, 2009